From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: bpf@vger.kernel.org
Cc: Jiri Olsa <jolsa@kernel.org>, Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>,
Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
Yonghong Song <yhs@fb.com>,
John Fastabend <john.fastabend@gmail.com>,
KP Singh <kpsingh@chromium.org>,
Stanislav Fomichev <sdf@google.com>, Hao Luo <haoluo@google.com>,
Viktor Malik <vmalik@redhat.com>,
"Masami Hiramatsu (Google)" <mhiramat@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>
Subject: [PATCH] bpf: Use an UNUSED id for bpf_session_cookie without FPROBE
Date: Wed, 29 May 2024 14:44:12 +0200 [thread overview]
Message-ID: <20240529124412.VZAF98oL@linutronix.de> (raw)
bpf_session_cookie() is only available with CONFIG_FPROBE=y leading to
an unresolved symbol otherwise.
Use BTF_ID_UNUSED instead of bpf_session_cookie for CONFIG_FPROBE=n.
Fixes: 5c919acef8514 ("bpf: Add support for kprobe session cookie")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
kernel/bpf/verifier.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 77da1f438becc..436f72bfcb9b9 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -11124,7 +11124,11 @@ BTF_ID(func, bpf_iter_css_task_new)
#else
BTF_ID_UNUSED
#endif
+#ifdef CONFIG_FPROBE
BTF_ID(func, bpf_session_cookie)
+#else
+BTF_ID_UNUSED
+#endif
static bool is_kfunc_ret_null(struct bpf_kfunc_call_arg_meta *meta)
{
--
2.45.1
next reply other threads:[~2024-05-29 12:44 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-29 12:44 Sebastian Andrzej Siewior [this message]
2024-05-29 16:18 ` [PATCH] bpf: Use an UNUSED id for bpf_session_cookie without FPROBE Alexei Starovoitov
2024-05-29 19:34 ` Jiri Olsa
2024-05-31 7:15 ` Sebastian Andrzej Siewior
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